Add a confirm dialog when deleting context of custom fields

Problem Definition

The context for custom fields can be deleted without confirmation.

Suggested Solution

In the delete button highlighted in the image below, add a confirmation that the existing data of the context will be deleted.

Why this is important

This is a serious concern on the reliability as it's possible to delete something without confirmation. There is a chance to click in the cog icon to edit the context and click on the bin and delete it accidentally.
If you have for example a custom field with multiple preset values, if the context is deleted, you must recreate the context and edit all issues accordingly.

Workaround

None.